JAVA文件上传（异步与form表单提交两种方式）

最新推荐文章于 2024-11-25 19:34:35 发布

原创最新推荐文章于 2024-11-25 19:34:35 发布 · 356 阅读

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JSP页面：
==============================================================================================================

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    <title>My JSP 'index.jsp' starting page</title>
	<link rel="stylesheet" type="text/css" href="upload/uploadify.css"/>
	<script type="text/javascript" src="upload/jquery-1.8.2.min.js"></script>
	<script type="text/javascript" src="upload/jquery.uploadify.min.js"></script>
  </head>
  
  <body>
  	<form action="upload/uploadPic">
  		<input type="text" name="name">
  		<input type="submit" value="submit">
  	</form>
  
  
    <h2>文件上传</h2>
    <div id="fileQueue"></div>
    <input type="file" name="uploadify" id="uploadify" />
    <p>
	    <a href="javascript:$('#uploadify').uploadify('upload','*');">开始上传</a> 
	    <a href="javascript:$('#uploadify').uploadify('stop');">取消所有上传</a>
    </p>
  </body>
  <script type="text/javascript">
  	$(document).ready(function(){
  		$("#uploadify").uploadify({
            'swf'            : 'upload/uploadify.swf',
            'uploader'       : '<%=basePath%>upload/uploadPic',
            'fileObjName'    : 'picFile',
            'fileSizeLimit'  : '100KB',
            'progressData'   : 'speed',
            'queueID'        : 'fileQueue',
            'queueSizeLimit' : 5,
            'auto'           : false,
            'multi'          : true,
            'uploadLimit'    : 5,
            'buttonText'     : '上传图片',
            'fileTypeDesc'	 : '请选择jpeg的图片',
            'fileTypeExts'	 : '*.jpg;*.jpeg'
        });
  	})
  </script>
</html>


JAVA代码：
============================================================================================
package com.test;

import java.io.File;
import java.io.IOException;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;

public class UploadServlet extends HttpServlet {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		doPost(req, resp);
	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		System.out.println("上传图片。。。。");
		uploadPics(req,resp);
	}

	
	public void uploadPics(HttpServletRequest req, HttpServletResponse resp){
		DiskFileItemFactory fac = new DiskFileItemFactory();
        ServletFileUpload upload = new ServletFileUpload(fac);
        upload.setHeaderEncoding("utf-8");
        List<FileItem> fileList = null;
        try {
			fileList = upload.parseRequest(req);
		} catch (FileUploadException e) {
			e.printStackTrace();
		}
        for(FileItem fileItem : fileList){
        	if(fileItem.getName() != null){
        		System.out.println(fileItem.getName());
        		File saveFile = new File("d:/"+fileItem.getName());
        		try {
					fileItem.write(saveFile);
				} catch (Exception e) {
					e.printStackTrace();
				}
        	}
        }
	}

	
}